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Finding the Fourth Proportional to 61,847.47, 85,349.51 and 34,989.42

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Solution

The fourth proportional to 61,847.47, 85,349.51 and 34,989.42 is: 48,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,847.47 : 85,349.51 = 34,989.42 : x
  2. Step 2: Convert to fraction form
    61,847.47/85,349.51 = 34,989.42/x
  3. Step 3: Cross multiply
    61,847.47x = 85,349.51 × 34,989.42
  4. Step 4: Simplify right side
    61,847.47x = 2,986,329,852.18
  5. Step 5: Solve for x
    x = 2,986,329,852.18/61,847.47
  6. Step 6: Final answer
    x = 48,285.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.